His rhetoric is dangerous.
True, we can’t judge what is in someone’s heart, only God can do that.
But we can, and must, judge what is in their hands (a sword), their body (a bomb) or their laws (Sharia).
In Matthew 10:16 it is said: “I am sending you out like sheep among wolves. Therefore be as shrewd as snakes and as innocent as doves.
We cannot put our heads in the sand and ignore the threats against us.
It is our duty to help those that cannot help themselves, like those being persecuted by the Mohammedans.
Or in their mouths, which in Mr. Popester's case is pretty foul.